System and method for a multi-mode pump in an optical amplifier

摘要

An optical amplifier includes a multi-mode pump laser module, a multi-mode waveguide, a multi-mode to multiple single-mode fiber converter module and a plurality of single-mode cores. The multi-mode pump laser module emits pump light having a plurality of modes to the multi-mode fiber or waveguide. The multi-mode waveguide propagates the emitted pump light to the converter module. The converter module receives the pump light and distributes the pump light approximately uniformly to a plurality of single-mode cores.

主权项

1. An optical amplifier, comprising:
a laser module operable to emit a multi-mode pump light; a first plurality of single-mode cores, wherein the single-mode cores are operable to propagate single-mode light; and a converter module including a fiber having a cladding and a second plurality of single-mode cores, wherein the fiber includes:
an input configured to receive the multi-mode pump light from the laser module and to substantially propagate the multi-mode pump light through the cladding of the fiber; andan output configured to substantially absorb the multi-mode pump light into the second plurality of single-mode cores to convert the multi-mode pump light to single-mode pump light and distribute the single-mode pump light in the second plurality of single mode cores to the first plurality of single-mode cores.